[mignon ledgard]

You guys are having so much fun!
The image of the sky as a full udder is grand. Why not more directly say,

The sky, a puffy udder OR The sky, a swollen udder, or something more direct that makes the image clear - it's an awesome one I wish I had thought of.. It's so good that I get the feeling I've encountered before, in someone else's poem.

I'm enjoying this thread.
~mignon

Addendum: Oops! And HA HA. I just saw you used 'swollen' - Yay!